Grating structure for windows



Jan. 24, 1933.

w. N. RoranNsoN GRATING STRUCTURE FOR WINDOWS Filed Feb. 18, 1931 Patented Jan. 24, 1933 PATENT; OFFICE' v WALLACE N. ROBINSON,A F MINNEAPOLIS, MINNESOTA GRATING STRUCTURE ron WINDOWS Application led February 18, 1931. Serial No. 516,588.

This invention relates to window or sash Vconstruction and more particularly to a grating structure adapted to be attached and associated with a window frame andsash.

It is an object of my present invention to provide an extremely simple, strong and efflcient attachment which may be utilized in connection with window vframes andsashes for the purposeof providinga protective 110 grating in the window opening when the sash is opened to prevent burglars and prowlers from entering. l

Y More specically itis an object to provide a grating attachment of the class described which may be easily and'quickly installed,

which will not mar the appearance of the sash or window frame andwhich limits the opening movement of the sash as well as provides a grating in the window opening at all open positions o f the sash within wide limits.

These and other objects andy advantages of the invention will be more fullyset forth in the following description made in connec- -25 tion with the accompanying drawing, in

vwhich like reference characters refer to similar parts throughout the several views, and Vin which y Fig. 1 is a front elevation of theflower por- "730 tion of a window frame and lower sash taken from the interior of the building, some portions of the sill and wall, as well as the 'lower rail of the sash being broken away;

Fig. 2 is a vertical section taken on the line 2-i-2 of Fig. 1;

Fig. 3 is a fragmentary section on a larger scale showing the manner in which the lower ends of the bars are inserted through the sill, and

Fig. 4 is a cross section taken on the line In the drawing a window frame of conventionaltype is illustrated including the sill 5, the parting strips 6 and.- the ornamental facing 7. v .Y

Within this frame the lower sash isslidably mounted in conventional fashion, said sash including the vertical stiles 8 and the lower rail 9, and provided with the usual glazing 10.

I provide a plurality of spaced vertical bars 11 anchored at their upper ends to the rail 9 of the sash and working through vertical apertures a formed in the sill 5, preferably directly below the sash rail 9. f Bars 11 are constructed of some strong rigid material, such as wrought iron, which is diiicult to break or cut, and the bars are preferably arranged and spaced apart to divide the window opening vertically into substantially '6' equal portions.

Spaced vertical sockets 9a are preferably formed or drilled in the lower edge of the sash rail to accommodate the upper ends of the bars 11 and the upper ends of said bars are secured to the sash within said sockets by means of transverse or diammetrically disposed bolts 12 the heads of which are preferably disposed at the exterior of the sash. I prefer to connect the upper .ends of the bars with an operating handle or lift 13 secured to the medial portion of sash rail 9 and to this end my handle is provided with extended attachment portions 18a which are rigidly bolted to the rail 9 and which further are provided with apertures for receiving the ends of the anchoring bolts 12, said bolts passing through the rail 9, and the upper ends of bars 11, (which may, if desired, be somewhat enlarged as illustrated) and also through the attachment portions of the hanstitute semi-cylindrical plates medially pivoted to the extremities 11a by relatively heavy trunnions or diametrcal pins 11b, the diameter of the cross sectional area of the toggle bolts being equal to or slightly less than the diameter of the body portion of the bar to permit the toggle bolts and lower ends of the bars to be readily inserted through the vertical apertures formed in the window sill. Plates 15 are of such weight and are centrally balanced so that they will normall swing to the horizontal position shown in igs. `1 and 2 to engage the bottom of the sill and limit the open position of the sash.

It will be apparent that the toggle boltsv and lower portions of the bars 11 will be accommodated in the space between the walls y, of the building and will be entirely concealed from view.

nIt will, of course, be lapparent that lii." desired the upper sash of the Window may be v l equipped .with my protective grating structure, the bars 1l working through apertures in the top board of the window frame.

In operation when the sash is open, bars 11 will be drawn upwardly sliding vertically through the apertured portions 5a Aand 'constituting a. strong protective grating disposed across the window opening.. The opening of the sash will be limited by abutmentof the toggle bolts 15 with the sill or lmember ofthe frame through which the bars I 11` extend.

- In recent years burglaries have been frequently perpetrated by kgaining admittance to a building through open windows. With my device the window opening is automatically provided with a strong protective grating in all open positions of the sash and lit will be impossible for a burglar to gain of the bars by cutting out small portions of thek lower rail of the sash. Y

From the foregoing description it will be seen that I have provided an extremely simlple'and highly efficient grating attachment for windows which will exclude burglars and prowlers, which does not mar the appearance of ther sash or window frame and which may ybe very quickly and easily installed in conventional window frames and sashes now in lextensive use. rThe grating is self-adjustable with the opening of the sash. The lower ends 4of the bars 11 are operatively connected with the sill or top piece of the window frame as the case may be by merely collapsing the tog-Y gle bolt and inserting the bolt and free end of the bars throughY the vertical apertures provided in the said window frame parts and the toggle bolts will swing to transverse position immediately', providing a lock to prevent the withdrawal of the bars.

It will, of course, be understood that various changes may be made in the form, details, proportions and arrangement of the parts, Without delparting from the sco e of my invention', w ich, generally stated consists in a device capable of carrying out the objects above set forth and in the novel parts and combinationsoffparts'disclosed and definedV in the appendedclaims.

What is claimed is 1. A gratingA attachment for windows comprising a plurality of relatively indestructible ars spaced apart to. `dividegtho, opening of the window andeach secured at one end to one of they rails of a sash andslidablyf workin through apertured portions of a membery o the window frame andmeans attached'to'fthe free ends yott said bars adapted to be collapsed toV permit insertion of vsaid ends through said frame member and adapted up'on insertion to .expandjto prevent withdrawal of said bars.

"2. In combination vwith a sliding Sash and sill or the like, a series of parallel bars extending in the direction ofthe opening movement of the sash and having unconnected free ends, means for securing the outer ends 0f said bars to the rail of the sash, said sill having a' series of apertures through whichfsaid bars kslidably extend and means secured tothe inner or free end of each of said bars to prevent withdrawalof said bars upon opening of -said sash, said means being contractable to permit insertion of said free ends through saidsilh' '1 3, In combination with a sliding sash and sill orV the like, a series of 'parallel bars.; e1!- tending in the direction of,y the opening movement of the sash 'and having unconnected 'free ends, means for securing thev outer ends of saidbars to the rail of the sash, said'sillhaving a series of spaced apertures therethrough for snugly accommodating said bars, said bars being slidable insaid sil-Land a retaining element pivoted tothe free or inner end of leach of said bars'and constructed to be i swung substantially infalignment with said bars for insertion of said bars through said cured to one of the rails of said; shby'at- Y tachment means which through 'said rail, a plurality of spaced bars extending in the direction of the opening movement of, said sash and having unconnected free ends,

attachment means extending through said handle member and said rail for securing the outer ends of said bars to said rail, said sill having a series of apertures through which said bars slidably extend and means secured to the inner or free end of each of said bars for preventing Withdrawal of said bars from said sill, said means being contractable to permit insertion of said free ends through 1o said apertures.

In testimony whereof I airix my signature.

WALLACE N. ROBINSON. 

